//按钮样式


.button-variant($color; $background; $border) {
  color: $color;
  background-color: $background;
  border-color: $border;
}


//按钮大小
.button-size($padding-vertical; $padding-horizontal; $font-size; $line-height; $border-radius) {
  padding: $padding-vertical $padding-horizontal;
  font-size: $font-size;
  line-height: $line-height;
  border-radius: $border-radius;
}
